DIN rail CAN-Module with inputs for 2 incremental encoders
RO-CAN-CNT/IGR2
DIN rail CAN-Module with inputs for 2 incremental encoders
- CAN-Interface controlled input modules
- Connection for 2 incremental encoders
- DIN rail module
- Pluggable terminal block for the connection wiring
The CAN modules with DIN rail for industrial use is designed to work under heavy industrial environments in switchboards for process measuring and control technology. Each module has a CAN interface and may therefore be easily integrated into existing CAN systems. The CAN-BUS stands the test of time and characterized itself by his perfect flexibity. It is therefore the prefered serial bus-system in the automotive industry.
The particularity hereby is the concept of galvanic isolation of the CAN bus. The galvanic isolation protects against voltage peaks.
The CNT/IGR-Modules are able to record changes in the position (linear) or the angular changes (rotating), the distance and travel direction or the angle change and the direction of rotation. The acquisition is via a connected incremental encoder.
As terminal block, user-friendly terminal strips with locking protection and ejection mechanism are used. They allow quick replugging . The wire connection itself is realised with a screwless connector system. A tool is included with each module.

More info
CAN-Interface
Transfer rate
The CAN-bus may have a length of up to 10 km! The selectable transfer rates are 1 Mbit/s, 500 Kbit/s, 250 Kbit/s, 125 Kbit/s, 100 Kbit/s, 50 Kbit/s, 20 Kbit/s or 10 Kbit/s. The transfer rate is configurable by software or by DIP-switches.
CAN-Interface connection (galvanically isolated)
The CAN-interface connection is realized by a 9 pin D-SUB socket connector. The galvanically isolated CAN interface ensures a protection against connected CAN devices by using optocouplers.
CAN-Addressing
The CAN-interface is configurable in three different ways.
Special mode
The usage of this mode is to set the CAN-interface quickly to default values. This is helpfull for a quick and easy setup and facilitates an error analysis or an initial operation.
Software mode
The software mode is to fully setup the module using an included software. It is possible to set up:
- Transfer rate
- CAN 2.0A (11 bit-addressing, "base frame format") oder CAN 2.0B (29 bit-addressing, "extended frame format ")
- CAN-interface address
- Response-Modul-Address (responses are sent to this address)
DIP-switch mode
The DIP-switch mode is to manually configure the CAN-interface using DIP-switches. The DIP-switch configuration may be read out using the DELIB-Configuration Utility. A configuration-check is therefore easy and simple.
Inputs
Visual monitoring of inputs
The state of every incremental encoder and its rotation is directly indicated by a LED. That way, wrong wiring is easily noticeable.
Accurate detection via incremental encoder
By subsequent evaluation of pulse numbers, pulse frequency and phasing you can determine the way, the speed and the rotation via incremental encoder.
Referencing
By restarting the incremental encoder the absolute position can not be recognized and the Position will be set to 0.
In this case Incorrect measurements can be a result. With limit switches the reference movements can be set so a determined position that can be approached. This leads to the exact calibration of the encoder.
Incremental encoder delivers per full rotation an extra reference pulse (Index) on a third channel. Some Incremental encoder have a distance-coded reference mark.
Connector
Easy to maintain connector system
The plug and socket consist of a multipoint socket connector and a multipin connector with a throw-off lever. Plug-in and plug-out is easy as well as rewiring the terminal strip. The wire connection itself is realized with a screwless connector system. A tool is included with each module.

Config
CAN-Addressing
The CAN-interface is configurable in three different ways. These are the Special-mode, the Softwaremode and the DIP switch mode.
Special mode
The usage of this mode is, to set the CAN-interface quickly and easily to default values. This is helpful for a quick and easy setup and facilitates an error analysis or an initial operation.
Software mode
The software mode is to fully setup the module, using an included software. It is possible to set up:
- Transfer rate
- CAN 2.0A (11 bit-addressing, "base frame format") oder CAN 2.0B (29 bit-addressing, "extended frame format ")
- CAN-interface address
- Response-Modul-Address (responses are sent to this address)
| Software to configure the CAN-interface |
|
Click to enlarge ![]() |
With this software, it is not only possible to store or load the stored configuration values, but also to see the actual set up values of the module. An error analysis is thus greatly facilitated.
DIP-switch mode
The DIP-switch mode is to manually configure the CAN-interface by using DIP-switches. The DIP-switch configuration may be read out, using the DELIB-Configuration Utility. A configuration-check is therefore easy and simple.

Tech.-Info
CAN-Interface |
|
| Power Supply | 7V to 24V DC (by a double-pole pluggable screw clamp) |
| Interface |
CAN (galvanically isolated using optocoupler) 9 pin D-SUB socket connector CAN 2.0A or CAN 2.0B Transfer rate: 1 Mbit/s, 500 Kbit/s, 250 Kbit/s, 125 Kbit/s, 100 Kbit/s, 50 Kbit/s, 20 Kbit/s or 10 Kbit/s One LED for each 3,3V and 5V voltage feed |
| Control-LED |
CAN activity ERROR Change of state (only for digital inputs) Timeout shutdown (only for outputs) Access to I/O module |
Incremental-Encoder-Modules |
|
| Inputs |
2 incremental encoder inputs Galvanic isolated using optocoupler |
| Activity-LED |
Activity LED (short blink on communication on the interface) Status LED (short blink on accessing the incremental encoders) Direction LED's (illuminates depending on chosen direction of rotation of the incremental encoders) |
| Connectors | 10 pin pluggable terminal block for 2 incremental encoders |
General |
|
| Operating temperature | 10°C...+50°C |
| Dimensions | 85mm x 126 mm x 31 mm (LxBxH) |

Diagrams
Functionality of the product


Software
Controlling of the CAN modules
Accessing to the RO-CAN modules over the CAN- interface happens by the following ways.
Automatic Sending Mode
The modules are able to send CAN packets automatically in a definded time interval. The time interval can reach from millisecond to second. The following picture shows a packet, which will be sent to the CAN-address 1234.
Automatic Receiving Mode
An automatic receiving on four different CAN-addresses can be configured individually. Also you can define, if the received CAN datas should be given out to relays or D/A converters. The following picture shows a packet, whose datas are sent to the CAN address 543.
A timeout protection switches the relays or D/A outputs, in failure, automatically of.
Also the user can activate a timeout protection. If the RO-CAN module cannot receive any CAN packets after a defined time interval, the module disables all outputs and set the D/A outputs to 0V.
DEDITEC CAN Addressingmode
A special CAN protocol, which have been developed by us, allows registry control to all functions of our modules. So are BYTE-, WORD- and LONG- accesses possible. A registry- and protocol description can be found in our download area.
Configuration by a graphic Windows configuration software
All CAN-addresses, CAN-speed and packet options can be set up from the user, over a special Configuration Utility for the RO-CAN serie. The configuration works over a free serial interface of a PC. Predefined CAN-addresses and several modes are adjustable by DIP switches.
Software-updates and start-up of the RO-CAN modules
Further to the delivered Windows driver library, the RO-CAN modules can be tested and updated with newer firmware. Over graphical testprograms, the modules can be tested and configured (without using the CAN-interface). So you can do test measurements and check the electrical wirings. Are all settings configured, the module can be connected to the CAN-interface.
| CAN Configuration Utility - RX |
|
Click to enlarge ![]() |
| CAN Configuration Utility - TX |
|
Click to enlarge ![]() |

Overview about available DELIB-Functions
General
General Handling
DapiOpenModule
ULONG DapiOpenModule(ULONG moduleID, ULONG nr);
This function opens a particular module. p>
DapiCloseModule
ULONG DapiCloseModule(ULONG handle);
This command closes an opened module. p>
DapiGetLastError
ULONG DapiGetLastError();
This function returns the last registered error. p>
DapiGetLastErrorText
ULONG DapiGetLastErrorText(unsigned char * msg, unsigned long msg_length);
This function reads the text of the last registered error. p>
DapiGetDELIBVersion
ULONG DapiGetDELIBVersion(ULONG mode, ULONG par);
This function returns the installed DELIB version. p>
Special
Special functions
DapiSpecialCommand - DapiSpecialCMDGetModuleConfig
ULONG DapiSpecialCommand(ULONG handle, DAPI_SPECIAL_CMD_GET_MODULE_CONFIG, par, 0, 0);
This command returns the hardware equipment (number of in-/output channels) of the module. p>
Digital-input
Digital input functions
DapiCnt48ModeSet
void DapiCnt48ModeSet(ULONG handle, ULONG ch, ULONG mode);
This command sets the count mode for a single input channel. p>
DapiCnt48ModeGet
ULONG DapiCnt48Modeget(ULONG handle, ULONG ch);
This command returns the count mode of a single input channel. p>
DapiCnt48CounterGet32
ULONG DapiCnt48CounterGet32(ULONG handle, ULONG ch);
This command reads the first 32 bits of a 48 bit input counter. p>
DapiCnt48CounterGet48
ULONGLONG DapiCnt48CounterGet48(ULONG handle, ULONG ch);
This command reads a 48 bit counter of an input counter. p>

Connector
Plug connection
Screwless plug connectors
All input and output connectors have a practical, screwless terminal block. An mechanic ejection guarantees a very quick module change without any special tools. Wire connection happens with screwdriver or an included plastic pin. (s. pic.1)
Pic1:
Connection example of a RO-Module
![]() |
RO-MODULE | |
![]() |
Step 1:
| |
![]() |
Step 2:
| |
![]() |
Step 3:
| |
![]() |
Step 4:
|

Optional E.
Hutschiene-1m
Die 1m Hutschiene eignet sich optimal zur schnellen Montage unserer Steuer/Regeltechnik-Module.
Netzteil 24V/2A für Hutschinenmontage
Das Hutschienen-Netzteil bietet Anwendern eine sichere Arbeitsumgebung und ist eine ideale Spannungsversorgung für unsere Steuer/Regeltechnik-Module. Es besitzt einen Wirkungsgrad von bis zu 80% und Internationale Sicherheitszulassungen Dank der Isolationsklasse 2 als auch der Sicherheit die das Hutschienen-Netzteil bietet.
10 poliger Steckverbinder mit Auswerfmechanik
Unsere Steckverbinder bieten einen einfachen und sicheren Anschluss an unsere Module. Durch die integrierte Auswerfermechanik ist das nachträgliche Austauschen der angeschlossenen Module möglich.

Manuals
Manuals
Manual RO-Series
Manual RO-Series Technical hardware manual for the whole RO-Serie
- Description of the measurement modules
- Configuration of the different module interfaces
- Installation of the DELIB driver library
Manual RO-CAN-INTERFACE
Manual RO-CAN-INTERFACE (Extract of the Manual RO-Series)Software documentation of our RO-CAN-Interfaces
Manual RO-Register Assignment
Manual RO-Register Assignment
- Description accessing the registers
- Description of the input, ouput and configuration registers
- Installing the DELIB driver library
Manual RO-CAN Transfer Protocol
Manual RO-CAN Transfer Protocol Description of the send and receive frame to communicate with the CAN modules
Datasheets
Datasheets
Driver
Driver / Programs
Manual for DELIB Driver Library for Windows 7, Windows Vista, XP, 2000 and Linux
Manual for DELIB Driver Library for Windows 7, Windows Vista, XP, 2000 and Linux Documentation of all functions
- module open/close functions
- Digital Input read 1 / 8 / 16 / 32 / 64 bit
- Digital Output write 1 / 8 / 16 / 32 / 64 bit
- A/D Read, read_volt, read_mA, set A/D mode
- D/A Write, write_volt, write_mA, set D/A mode
DELIB driver library for Windows 7, Vista, XP and 2000
DELIB driver library for Windows 7, Vista, XP and 2000
Installation file for USB driver
supports the following operating systems: 32 Bit:
- Windows 7
- Windows Server 2008
- Windows Vista
- Windows XP
- Windows Server 2003
- Windows 2000
64 Bit:
- Windows 7 x64
- Windows Server 2008 x64
- Windows Vista x64
- Windows XP x64
- Windows Server 2003 x64
Downloads
Downloads
RO Flasher Update
RO Flasher Update Flasher software for firmware update of the RO-CPU Modules and the Mini Sticks

















